from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun biochemistry One of the
naturally occurring amino acidsthat the human bodycannot synthesize, and so must be providedby dietary protein.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an amino acid that is required by animals but that they cannot synthesize; must be supplied in the diet
from Wiktionary, Creative Commons Attribution/Share-Alike License
See essential and amino acid.
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